Best Box Spring for King Bed 9 Inch in 2025
Updated on June 2025
#1
Recommended
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- Sturdy metal slats and reinforced steel frame provide excellent durability and weight distribution, supporting up to 3000 lbs and minimizing sagging.
- At 9 inches in height, this box spring is compatible with various mattress types, offering an elevated sleeping experience.
- Assembly is quick and easy with all components, tools, and instructions conveniently packed in one box.
- Designed for quiet operation, the welded pole and support frame construction prevents noise during movement, ensuring undisturbed sleep.
- Includes a high-quality elastic cover that is shrink and wrinkle-resistant, keeps the mattress secure, and is easy to remove for cleaning.
- This box spring requires a bed frame or platform bed for support, but can also be used as a standalone frame thanks to its robust construction.
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- Sturdy metal slats and reinforced steel frame provide excellent durability and weight distribution, supporting up to 3000 lbs and minimizing sagging.
- At 9 inches in height, this box spring is compatible with various mattress types, offering an elevated sleeping experience.
- Assembly is quick and easy with all components, tools, and instructions conveniently packed in one box.
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#2
Value for Money
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- Sustainable delivery in a compact WonderBox, designed for easy maneuvering through tight spaces
- Assembly requires no tools and takes only minutes
- Adjustable height options of 5 inches or 9 inches for personalized comfort
- Sturdy steel frame ensures durability and enhances mattress longevity
- Includes a 5-year warranty; requires a compatible bed frame or platform bed for support
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- Sustainable delivery in a compact WonderBox, designed for easy maneuvering through tight spaces
- Assembly requires no tools and takes only minutes
- Adjustable height options of 5 inches or 9 inches for personalized comfort
- Sturdy steel frame ensures durability and enhances mattress longevity
- Includes a 5-year warranty; requires a compatible bed frame or platform bed for support
#3
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- Engineered with reinforced joints and heavy-duty metal slats for optimal stability and support, accommodating up to 3000lbs.
- 9-inch low profile design enhances mattress comfort and is compatible with various mattress types, including innerspring, memory foam, and latex.
- Silent construction prevents squeaking, ensuring a durable mattress foundation for a peaceful sleep experience.
- Includes clear assembly instructions and all necessary tools for quick and easy setup of the king box spring.
- Comes with a fitted fabric cover that prevents slipping, is resistant to shrinkage and wrinkles, and is easily removable for cleaning.
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- Engineered with reinforced joints and heavy-duty metal slats for optimal stability and support, accommodating up to 3000lbs.
- 9-inch low profile design enhances mattress comfort and is compatible with various mattress types, including innerspring, memory foam, and latex.
- Silent construction prevents squeaking, ensuring a durable mattress foundation for a peaceful sleep experience.
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#4
5% Off
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- Heavy-duty steel construction offers robust support and enhanced durability for king-size mattresses.
- Engineered for silent operation, ensuring a peaceful sleeping environment without disruptions from movement.
- Non-slip design securely grips the mattress, minimizing shifting and the need for adjustments.
- Hassle-free assembly requires no additional tools, allowing for efficient setup by a single person.
- Stylish black fabric cover complements bedroom decor while protecting the mattress.
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- Heavy-duty steel construction offers robust support and enhanced durability for king-size mattresses.
- Engineered for silent operation, ensuring a peaceful sleeping environment without disruptions from movement.
- Non-slip design securely grips the mattress, minimizing shifting and the need for adjustments.
- Hassle-free assembly requires no additional tools, allowing for efficient setup by a single person.
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#5
10% Off
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- Sturdy Construction: This king-size box spring is designed with a sturdy metal frame to provide reliable support for your mattress
- Easy Assembly: With its straightforward design, this king box spring can be easily assembled without the need for additional tools
- Versatile Choice: Whether you're furnishing a guest room or upgrading your primary bedroom, this king box spring offers a practical solution
- Ideal Dimensions: Measuring the standard king size of 79.5 inches by 75.6 inches, this box spring for king bed fits seamlessly with most king-sized mattresses
- Breathable Surface: The fabric cover allows for optimal air circulation, promoting a comfortable sleeping environment and easy to remove for cleaning
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- Sturdy Construction: This king-size box spring is designed with a sturdy metal frame to provide reliable support for your mattress
- Easy Assembly: With its straightforward design, this king box spring can be easily assembled without the need for additional tools
- Versatile Choice: Whether you're furnishing a guest room or upgrading your primary bedroom, this king box spring offers a practical solution
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#6
10% Off
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- 9" height provides optimal elevation for comfort and can be used with a bed frame or directly on the floor.
- Silent design ensures undisturbed sleep by remaining noise-free during movement.
- Constructed from high-grade steel, it supports up to 3000 lbs for stability and durability.
- Features a breathable fiber cover with elastic bands for easy removal and cleaning.
- Designed for quick assembly with integrated construction and included tools.
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- 9" height provides optimal elevation for comfort and can be used with a bed frame or directly on the floor.
- Silent design ensures undisturbed sleep by remaining noise-free during movement.
- Constructed from high-grade steel, it supports up to 3000 lbs for stability and durability.
- Features a breathable fiber cover with elastic bands for easy removal and cleaning.
- Designed for quick assembly with integrated construction and included tools.
#7
5% Off
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- No box spring required; supported by durable metal slats spaced 7.83 inches apart to prolong the lifespan of various mattress types.
- Simple assembly with all necessary parts and instructions included, allowing setup in 20-30 minutes.
- Sleek, minimalist design that complements modern bedroom aesthetics and fits seamlessly with existing decor.
- Constructed from high-quality metal with reinforced legs for stability; holds up to 1000 pounds in weight.
- Designed to minimize noise with a stable square frame and includes anti-scratch foot covers to protect flooring.
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- No box spring required; supported by durable metal slats spaced 7.83 inches apart to prolong the lifespan of various mattress types.
- Simple assembly with all necessary parts and instructions included, allowing setup in 20-30 minutes.
- Sleek, minimalist design that complements modern bedroom aesthetics and fits seamlessly with existing decor.
- Constructed from high-quality metal with reinforced legs for stability; holds up to 1000 pounds in weight.
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#8
16% Off
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- Enhances mattress comfort and stability
- Compatible with all mattress types including spring, memory foam, latex, and hybrid
- Supports up to 700 lbs total (250 lbs per person)
- Quick assembly with an interlocking design; no tools required
- Durable steel construction with horizontal slats for strong support
- Easy to clean with a removable zip cover
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- Enhances mattress comfort and stability
- Compatible with all mattress types including spring, memory foam, latex, and hybrid
- Supports up to 700 lbs total (250 lbs per person)
- Quick assembly with an interlocking design; no tools required
- Durable steel construction with horizontal slats for strong support
- Easy to clean with a removable zip cover
#9
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- Metal frame with reinforced steel supports up to 2000LB, ensuring long-lasting mattress support.
- 9-inch high profile design suitable for shorter mattresses or those preferring a taller bed height.
- Easy to assemble with included parts, tools, and straightforward instructions.
- Jacquard fabric cover enhances bedroom aesthetics, prevents mattress sliding, and is removable for easy cleaning.
- Dimensions: King size box spring measures 79.6" L x 75.6" W x 9" H, compatible with 80" L x 76" W mattresses.
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- Metal frame with reinforced steel supports up to 2000LB, ensuring long-lasting mattress support.
- 9-inch high profile design suitable for shorter mattresses or those preferring a taller bed height.
- Easy to assemble with included parts, tools, and straightforward instructions.
- Jacquard fabric cover enhances bedroom aesthetics, prevents mattress sliding, and is removable for easy cleaning.
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#10
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- Compatible with any memory foam or hybrid mattress.
- Noise-free design promotes a comfortable sleep experience.
- Easy assembly with included hardware, tools, and instructions.
- Features a removable fabric cover for easy spot cleaning.
- Heavy-duty construction supports up to 3000 lbs.
- Measures 79.6" L x 75.6" W x 9" H, suitable for 80" L x 76" W mattresses.
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- Compatible with any memory foam or hybrid mattress.
- Noise-free design promotes a comfortable sleep experience.
- Easy assembly with included hardware, tools, and instructions.
- Features a removable fabric cover for easy spot cleaning.
- Heavy-duty construction supports up to 3000 lbs.
- Measures 79.6" L x 75.6" W x 9" H, suitable for 80" L x 76" W mattresses.
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